Internal-combustion engine.



E. A. R-IUTTE. INTERNAL COMBUSTION ENGINE. APPLICATION n50 0:0.19. 1916.

1 ,245,5 1 0. Patented Nov. 6, 1917. Y ,2! $1. 1 '6 50? 0 X6 Z4 T11 59 i6 E. A. RIOTTE. INTERNAL COMBUSTlON ENGINE. APPLICATION FILED 02c. 19. I916.

Patental Nov. 6, 1917 2 SHEETS-SHEET 2.

UNITED snares rarities EUGENE a :azotnrn, or

nouemsron', new roan, assienos ro s'rairnann moron CONSTRUCTION COMPANY, OF JERSEY CITY, HEX/V JERSEY, A CGEWOBJATIGN 03' NEW JERSEY.

INTERNAL-COMBUSTION ENGINE.

Patented Nov. a, rat a.

Application filed December 19, 1916. Serial No. 137,771.

' To all whom it may concern:

Be it known that I, EUGENE A. Rrorrn, a citizen of the United States of America, residing at Douglaston, Queens count New York, have invented a new and use I Internal-Combustion Engine, of which the following is a specification.

My invention relates to internal coinbus tion engines, the object being to provide an improved constructlon whereby the hydrocarbons such as kerosene may be successfully em loyed.

n the drawings:

Figure 1 is a side elevation chiefly in section illustrating the head of an engine of the internal combustion variety with my invention applied thereto.

Fig. 2 is a plan view of the same.

"I have shown my invention as applied to a two cylinder engine of the four stroke variety, although obviously the number of cylinders may be varied as desired. 1 name sents the interior wall of a cylinder. 2 represents a piston therein. 3 represents an exhaust valve which is opened in the usual manner on the exhaust stroke to permit the burnt gases to be expelled. The engine is, of course, equi ped with the usual connecting rod, crank s aft,.fiy-whcel, cam shaft and associated parts, such as commonly found in engines of this type and too well known to mission valve which is located in the head of the cylinder preferably in about the center, said air inlet valve opening inwardly to permit air to enter on the. suction stroke. 5 represents the air admission passage in the cylinder head. 6 represents an atomizer tip mounted in this instance centrally in the valve 4. 7 represents a small air passage which is so associated with the atomizer tip 6 that when a jet of compressed air is forced through said passage 7 it will atomize fuel which may be fed through the tip 6. The stem of the valve 4 is hollow and has at its lower end a fuel passage 8. Fuel may be fed into the hollow stem in any suitable way as by a pipe 9 through which pipe fuel may be supplied from a suitable source. In this instance said fuel is pumped through said pipe 9, the pump plunger being indicated at '10 and the check valves of the said pump being indicated at 1112. Oil is fed to said pump from a suitable supply through passage 13. 14 represents a pipe through which cone connected with pressed air maybe forced. 15 represents a valve having one or more ports 16-16, which valve in this particular case is mounted on a hollow stem 17, the passage of which. leads to the passage 7. This stem is likewise the valve 4 so that as the valve 41 moves up and down the valve 16 will be correspondingly moved. When the valve -i moves down the valve 15 moves into a position where the ports 16 will open commumcation from the compressed air supply to the air jet passage 7 so that at that time air will be forced through the passage 7 to efl'ect' the atomizing of the fuel. When the valve1 4. is closed the valve 15 will corre spon ing y c ose the com ressed air sn 1 to the jet passage v*7. Th5 valves 4 almay be closed by a singlemeans, for ear ample,-a spring 4, which spring is located around the hollow stem of the valve 4 and. engages at one end against a stationary abut ment 18 and at the other end against a sliding abutment 19 which latter may also act as a guide for the upper end of the stern of the valve 4. In the particular arrangement shown in the drawings I have devised a connection between the valve 4 and the pump piston 10 so thatthe movement of the valve 4 may be utilized to operate the fuel pump piston 10. This construction comprises a rocker 20 pivoted at 21 intermediate its length. One end of this rocker 20 is conneoted at 22 to the upper end'of the valve 15, while the other end of this rocker is connected at 23 to the upper end of the fuel pump piston 10. rocker 20 is preferably mounted on a swinging arm 24 which is mounted on a rock shaft 25 which latter may be adjusted angularly. The pivot 21 is movable in a slot 26 in the rocker 20, which slot is arranged concenf trically with the axis of the rock shaft By shifting the position of the pivot 21 the stroke of the pump piston 10 may be varied to vary the speed of fuel feed.

If desired, a back check valve 27 may be provided in the compressed air passage back of the jet passage 7. Also, if desired, a back check valve 28 may be located in the fuel feed passage just back of the atomizer tip 6.

Operation: hen the engine is started, the valve 4 is sucked open von the suction stroke of the piston 2. This admits air from the passage 5 into the cylinder which air flows out all around the valve 4 so as to How doivn all sides of the cylinder Wall 1, to form in effect an air envelop-f Simultaneously, fuel in the form of a mist is injected into the center of the cylinder in theproper proportions relatively to the air to become mixed therewith on the compression stroke so as to form the combustible gas which may be ignited inany suitable manner at the proper moment. The envelop of air admitted past the valve i serves'to protect the Walls of the cylinder so as to prevent lodgment thereof of solid particles-of fuel to such a degree as to result in undue carbon deposit being. formed thereon. It is Well known thatin the use of heavier hydro-carbons, as fuel for engines of this character, the cylinder Walls become rapidly lined With a carbon deposit which quickly reduces the eiliciency of the engine and requires frequent taking down and scraping. By my improvement this danger is very largely eliminated so that it is possible to successfully use a heavier hydro-carbon for this purpose. As a matter of fact, although fuel is introduced in the form of What may be termed a moist gas, the particles of fuel are so finely divided and the walls of the cylinder are so protected that the tendency to form a carbon deposit will be very slight.

Any suitable ignition means may of course be provided, known to require illustration or description.

if desired, the space around the tubular stem 17 into which oil is clivered by the pipe 9, may be vented, such a vent being indicated at 30.

From the foregoing, it will be seen that my invention contemplates not only a new apparatus but a new method of supplying a gas engine of the internal combustion variety with fuel and forming said fuel into a combustible mixture. This method in its preferred form contemplates first admitting relatively pure air into the cylinder on the suction stroke, said air being so guided that it will Wash down the sides of the cylinder so as to protectQthe' same from the finely atomized fuel which is also introduced on the suction stroke shortly after the air has been admitted to form the protecting wall or envelop. It Will be understood,of course, that by the air or pure air I do not mean to exclude a comparatively lean gas, since the spirit and scope of my-invention could not be avoided by simply charging atmospheric air With a slight amount of gas that Would, not interfere with the proper mixing of the air with the fuel Within the cylinder for the forming of the combustible mixture.

'VVhat I claim is:

1. In an internal combustion engine, a cylinder, a reciprocating piston, an air admission port, a valve therefor arranged to be opened on the suction stroke of said pissuch means being too well l iaeasio ton, a liquid fuel feed passage leading into said cylinder from a suitable source of supply, means for atomizing liquid fuel directly in said cylinder on said suction stroke, said atomizing means including a compressed air passage and a valve thereof, the latter being opened by said. air valve when said air valve is opening.

2. In an internal combustion engine, a cylinder, a reciprocating piston, an air admission port, a valve therefor, a liquid fuel passage through said valve and opening into said cylinder, a compressed air passage through said valve adjacent to said fuel feed passage.

3. In an internal combustion engine, a cylinder, a reciprocating piston, an air admission port, a valve therefor, a liquid fuel passage throu '11 said valve and opening into said 0 lin er, a compressed air passage throng said valve adjacent to said fuel feed passage, and backcheck valves in said fuel and compressed air passage d. In an internal combust on engine, a reciprocating piston, an air passage entering said cylinder at theouter end and substantially in the center, an air valve arranged to open said passage on the suction stroke, a fuel atomizing means carried by said valve and, arranged to operate to inject into the cylinder on the suction stroke a'finely atom-' ized liquid fuel, said atomizing means including a compressed air valve operated by the movement of said air valve.

5. In an internal combustion engine, a reciprocating piston, an air passage entering said cylinder at the outer end and substantially in the center, an air valve arranged to open said passage on the suction stroke, a fuel atomizmg means earned by said valve and arranged to operate to myect into the cylinder on the suction stroke a finely atomized liquid fuel said atomizing means including acompressed air valveoperated by the movement of said air valve, and also in- .cluding a fuel feeding pump also operated by the movement of said air valve.

6. In an internal combustion engine, a reciprocating piston, an air passage entering said cylinder at the outer end and substantially in'the center, an air, valve arranged to open said passage on the suction stroke, a,

fuel atomizing means carried by said valve and arranged to operate to inject into the cylinder on the suction stroke a finely atomized liquid fuel, said atomizing means including a compressed air valve operated by the movement of said air valve, and also including a fuel feeding pump also operated by the movement of said air valve, with means for varying the operation of the fuel feeding means to control the amount of fuel fed to the,atomizing means.

7. In an internal combustion engine, a cylinder, an air admission passage, an air valve therefor including a hollow stem, an atomizing means carried by said valve, :1 compressed air pipe passing through said stem and connected to said air valve, and a compressed air valve carried by said pipe with a com pressed air supply pipe controlled by the last mentioned valve.

8. inder, an air admission passage, an air valve therefor including a hollow stem, an atomizino means carried by said valve, a compressed air pipe passing through said stem and connected to said air valve, and a compressed air valve carried by said pipe, a compressed air supply pipe cbntrolled by the last mentioned valve, and a fuel pump With operative means of connection between said pump and said air valve to operate the former by the operation of the latter;

9. In an internal combustion engine, :1 cylinder, an air admission passage, an air valve thereto! including a hollow stem, an atomiziu; means carried by said valve, compressed air pipe passage through said stem and connected to said air valve, and a compressed air valve carried by said pipe, a com- In an internal combustion engine, a cylpressed air supply pipe controlled by the last mentioned valve, and a fuel pump With operative means of connection between said pump and said air valve to operate the former by the operation of the latter, said means comprising a rocker connected at one end to the valve and at the other end to the pump element.

10. In an internal combustion engine, a cylinder, an air admission passage, anair valve therefor including a hollow stem, an atomizing means carried by said valve, a compressed air pipe passing through said stem and connected to said air valve, and a compressed air valve carried by said pipe with a compressed air supply pipe controlled by the last mentioned valve, and a fuel pump with operative means of connection between said pump and said air valve to operate the former by the operation of the latter, said means comprising a rocker connected at one end to the valve and at the other end to the pump element, the fulcrum for said rockin element being shiftable to vary the stroke of saidpump element.

EUGENE A. RIQTTE. 

